Work and Power

Anytime work is done, what is being added to the object.

• Power

• Time

• Velocity

• Energy

Tags

NGSS.HS-PS3-1

Which is not a condition to do work?

• a force must be exerted.

• the object must move.

• The object must accelerate.

• The object must move the same direction as the force that is exerted.

What is your unit for work?

• Newtons

• Joules

• Meters

• Seconds

Tags

NGSS.MS-PS3-5

Does time play a factor in how much work you do?

• Yes, the faster you do something the more work you do

• Yes, the faster you do something the less work you do

• Sometimes it does but other examples it doesn't

• No it never plays a factor

If object A does work on object B, what happens to object A?

• It gains energy

• It loses energy

• It gains power

• It loses power

If object A does work on object B, what happens to object B?

• It gains energy

• It loses energy

• It gains power

• It loses power

Tags

NGSS.HS-PS2-1

What is Power?

• The rate a which work is done

• An energy transfer

• A force over a set distance

• Possession of control, authority, or influence over others.

What is our unit for Power?

• Joules

• m/s

• Watts

• Newtons

IS IT WORK: Jessi pulls her suitcase along on her way to the airport.

• Work

• Not work

IS IT WORK: Andrew tries to stop his car from slowly rolling into the street by pushing against it.

• Work

• Not work

Tags

NGSS.HS-PS2-1